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<h1>Montmorillonite</h1>

<h2>Chemical formula</h2>
(Na,Ca)<sub>0.33</sub>(Al,Mg)<sub>2</sub>(Si<sub>4</sub>O<sub>10</sub>)(OH)<sub>2</sub>·<i>n</i>H<sub>2</sub>O

<h2>External links</h2>
<ul>
<li><a href="https://en.wikipedia.org/wiki/Montmorillonite">Montmorillonite - Wikipedia</a></li>
</ul>
